Home > Great Big Greenhouse Blog > April 2015 > PELARGONIUM--THE ANNUAL GERANIUM


Summer is all about lawn sprinklers, flip-flops, the music of an ice cream truck, cook-outs, and big pots of bright red geraniums.  This common summer annual originating in South Africa never goes out of style.

The annual geranium (Pelargonium x hortorum) was introduced to Europe in the 17th century.  It is popular around the world for its tolerance of heat and sun.  And all you need to keep it blooming away is sunshine and a little fertilizer (geraniums are somewhat drought tolerant.)  This geranium is also known as a zonal geranium when grown from cuttings, and gets large with big flower heads.  If grown from seed (called “seed” geraniums) it stays smaller and is a good choice for flower beds.

For planters, window boxes, and hanging baskets, you want to purchase a zonal or cutting geranium or an ivy geranium (Pelargonium peltatum).  The ivy geranium tends to trail which makes it a great choice for displaying overhead in baskets.  Newer hybrids like the Calliope geranium has large velvety red zonal-type flower heads and has a spreading habit.  Another hybrid, the Calliente geranium, is very heat resistant and has smaller flowers on taller stems and requires less dead-heading.  Whichever geranium appeals to you, they should give you a summer of wonderful color!
Posted: 4/29/2015 by Margot | with 0 comment(s)
Filed under: MargotGunn, TheGreatIndoors
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